ISRO is all set to study the sun as the Aditya-L1 spacecraft lifts off on Saturday (September 2). The observatory mission, which will reach the Lagrange point 1, or L1, in approximately 120 days will last for more than five years.
The L1 is a vantage point – about 1.5 million km from the Earth and about 148.5 million km from the sun – where gravitational forces between the sun and the Earth are perfectly balanced. The mission has seven payloads onboard and its primary one, visible emission line coronagraph or the VELC, has been developed and designed by Prof Ramesh R and his team from the Indian Institute of Astrophysics (IIA) in Bengaluru.
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